Question 878471
For the first bond, it returns a 100% profit in 10 years.  If nothing is compounded, that is a straight 10% per year (a very nice return!).
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For the second bond, if it's compounded annually for ten years, you'll get back $188.
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There's an excellent full explanation here: http://www.algebra.com/algebra/homework/Exponential-and-logarithmic-functions/Exponential-and-logarithmic-functions.faq.question.481218.html
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Note that credit cards compound their interest DAILY.  It's how people get into trouble.  Better to pay cash!